Great news, merci Régis.
IMHO it is not important to set priorities: both standards and
performances are important, for different reasons, and implementing one
will not interfere with the other - just different actors will be involved.
I'm sure both will receive higher support from PSC and QGIS community as
a whole, especially power users.
All the best.

Il 08/02/2018 17:20, Régis Haubourg ha scritto:
> 
>>
>>      * One blocker for WFS was the performance of spatial filter, in
>>     2.x, they were not forwarded to the database when possible, and
>>     implied reading the whole layer in memory before doing the spatial
>>     query on the QGIS side. Anyone knows if it's still the case? 
>>
> 
>     No changes here. You just have to specify a QGIS2.ini or QGIS3.ini
>     to speficy this.
>     René-Luc,
> 
>  
> I probably missed something. Are you refering to the taking advantage of
> the setting "Evaluate expressions on QGIS side when possible" ?
> 
> 
>     Good points. OGC certification is certainly important and would help
>     us market QGIS server to potential users. On the other hand - for me
>     personally - improving performance to bring it at least back to the
>     same level like version 2 (if not better) is of much higher priority.
> 
>     Thanks for having a look at how certification may work.
> 
>     Let's talk about it in Madeira.
> 
> Yep, I agree on the priorities too, we are in an estimating stage for
> Orange. I bet the thread anbout performance can push this one upper on
> the todo list :)
> Let's sprint that in Madeira.
> 
> Cheers
> Régis
> 
> 
> 2018-02-08 16:07 GMT+01:00 Andreas Neumann <a.neum...@carto.net
> <mailto:a.neum...@carto.net>>:
> 
>     Hi Régis,
> 
>     Good points. OGC certification is certainly important and would help
>     us market QGIS server to potential users. On the other hand - for me
>     personally - improving performance to bring it at least back to the
>     same level like version 2 (if not better) is of much higher priority.
> 
>     Thanks for having a look at how certification may work.
> 
>     Let's talk about it in Madeira.
> 
>     Andreas
> 
>     On 2018-02-08 11:25, Régis Haubourg wrote:
> 
>>     Hi all,
>>
>>     As you know, QGIS server has been fully refactored for QGIS 3.
>>
>>     Now some big enterprises are starting to rely on it in production
>>     environment and would like to consolidate again QGIS server.
>>
>>     I have some informations and questions :
>>
>>
>>     # OGC certification
>>
>>     I got in touch with the OGC certification team, in the aim of
>>     getting official certification, since we pass all WMS 1.3.0 tests.
>>     If we seek a reference implementation status on behalf of OSGEO
>>     and QGIS.org, there should be no fees, that's great news.
>>     The process must be renewed every year.
>>     We started the online testing process here:
>>     http://cite.opengeospatial.org/teamengine
>>     <http://cite.opengeospatial.org/teamengine>. It's failing
>>     currently, probably because of IP redirections we need to fix in
>>     our reference server (the one used by the continuous integration
>>     system)
>>      
>>     We are asked to start evaluating WFS conformity too, but that
>>     should be a bit painful since there is no API in TeamEngine to
>>     make continuous integration, and online platform is not
>>     responding. So I'm not confident we'll have quick results here.
>>
>>     If everything goes well, I think QGIS can be certified soon! I
>>     think this will be very interesting to advertise in the doc and
>>     website.
>>
>>     The OGC team seems really happy to see QGIS getting in the
>>     certification loop, and suggest we also try to certify QGIS as a
>>     client. If anyone has worked in that area, that would be nice to
>>     join efforts.
>>      
>>
>>     # Performance
>>
>>      * We are still interested in having performance measure reference
>>     and ideally have performance driven development with a continuous
>>     integration system. Yves, is there anything new on your side?
>>
>>      * One blocker for WFS was the performance of spatial filter, in
>>     2.x, they were not forwarded to the database when possible, and
>>     implied reading the whole layer in memory before doing the spatial
>>     query on the QGIS side. Anyone knows if it's still the case? 
>>
>>
>>
>>     all the best
>>     Régis
>>      
>>
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